Aquatic macrophyte mats as dispersers of one invasive plant species

Michelan, Thaísa Sala; Dainez-Filho, Mário Sérgio; Thomaz, Sidinei Magela

doi:10.1590/1519-6984.06216

Cited by 11 publications

(5 citation statements)

References 12 publications

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“…Thus, studies filling this gap can help to understand the relative success of some invasive macrophytes in Brazilian waters. For example, in situ observations showed that small individuals of U. arrecta are dispersed on floating mats of native macrophytes (Michelan et al 2018). Studies about H. verticillata showed that its fragments regenerate very fast (Umetsu et al 2012) and resist droughts (Silveira et al 2009), which help explain its fast spread in the Upper Paraná River basin.…”

Section: Invasion Biologymentioning

confidence: 99%

Ecology of Aquatic Macrophytes in Brazil: The Legacy of Francisco De Assis Esteves

Thomaz¹,

Carvalho²,

Mormul³

et al. 2022

Oecol. Austr.

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In this review, we evaluate the contribution of Brazilian limnologists to research outputs on aquatic macrophyte ecology. We found a strong “adviser effect” of Professor F.A. Esteves on the Brazilian scientific production focused on aquatic macrophytes. In general, articles focused on a variety of themes, including, inter alia, the role of aquatic macrophytes on the biodiversity of other groups, the interaction between macrophytes and the environment, the effects of environmental factors on aquatic macrophytes distribution and biodiversity, the effects of invasive species on aquatic biodiversity, aquatic macrophytes control and decomposition. Emerging topics (e.g., metacommunity ecology, biodiversity-ecosystem functioning, and patterns of diversity and their determinants) are being embraced by Brazilian limnologists that use aquatic macrophytes as organism models. Despite the fact there is much to study, we think that directly (e.g., via mentoring) or indirectly (via publications), our current knowledge about macrophytes ecology was inspired by Chico Esteves.

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Section: Invasion Biologymentioning

confidence: 99%

Ecology of Aquatic Macrophytes in Brazil: The Legacy of Francisco De Assis Esteves

Thomaz¹,

Carvalho²,

Mormul³

et al. 2022

Oecol. Austr.

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“…The plant has a fast growth ability, high sexual and asexual reproductive capacities, a relatively short growth period, and low genetic differentiation, causing the plant to become the most widely distributed invasive aquatic plant worldwide (Zhang et al, 2010; International Union for Conservation of Nature IUCN, 2013). The plant can cover the water surfaces to form a continuous floating mat, which is extremely harmful to aquatic habitats (Charles and Dukes, 2008;Michelan et al, 2018). It is difficult to eradicate from a water body using the salvage method (Patel, 2012).…”

Section: Possible Management Implications For Invasive Plantsmentioning

confidence: 99%

Transformation of Aquatic Plant Diversity in an Environmentally Sensitive Area, the Lake Taihu Drainage Basin

Huang

Guan

et al. 2020

Front. Plant Sci.

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Located downstream of the Yangtze River Delta, the Lake Taihu drainage basin (LTDB) is one of the most developed areas in China. This area currently faces population and development issues, as well as many environmental problems, such as cultural eutrophication, algal blooms, and loss of native aquatic plants. Changes in aquatic biodiversity have received less attention than have changes in terrestrial habitats because relevant observations are lacking. In this study, information from 2010, 2014, and 2018 concerning the transformation of the aquatic plant biodiversity was obtained. The results showed that the dominant aquatic plants have changed from native plants to invasive plants. Aquatic plant biodiversity showed a decreasing trend, which may reduce the freshwater ecosystem function, and anthropogenic activities accounted for these changes. How to prevent the decline in aquatic plants and control the invasion of introduced aquatic plants should be a priority in the management of aquatic plants in the LTDB.

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“…Representatives of this genus (including U. arrecta) have been responsible for negative impacts such as the reduction of the diversity of aquatic communities, replacement of native ora, increase of biotic homogenization and the blocking of canals, bridges, and water intake ducts for hydroelectric power plants (Carniatto et al 2013;Amorim et al 2015;Latini et al 2016;Galvanese et al 2022). Furthermore, U. arrecta has high plasticity and can grow as an epiphytic life form on drifting oating macrophyte mats, which enhances its dispersion and potential impacts (Michelan et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Low genetic diversity in an African invasive Poaceae in Brazil

Scorsim

Diamante

Fabrin

et al. 2022

Preprint

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Poaceae has numerous species that are highly invasive thorough the planet. Urochloa, native to Africa, stands out in terms of invasion and impacts in South America. However, the correct identification of the species included in this genus is complex due to their morphological similarity with other species and there is a lack of studies involving the genetic variability of some species in Brazil, which is important for understanding the invasion mechanisms and planning control measures. In this study, we evaluated the genetic variability of the invasive exotic Poaceae Urochloa arrecta in different Brazilian regions, by using the nuclear marker ITS and the chloroplast marker trnL-trnF. The sequences obtained were compared with those available in GenBank (NCBI). The results indicated a low genetic differentiation among the sampled populations. Seven and ten distinct haplotypes were identified for ITS and trnL-trnF, respectively, and most specimens shared a single haplotype. These results indicate that a limited number of propagules were introduced in the invasive range and/or that this species reproduces mainly through asexual reproduction. This last possibility is suggested by the great regeneration and colonization rates of asexual propagules of this species. The data obtained are useful for understanding the invasion mechanisms of the group in the region.

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Aquatic macrophyte mats as dispersers of one invasive plant species

Cited by 11 publications

References 12 publications

Ecology of Aquatic Macrophytes in Brazil: The Legacy of Francisco De Assis Esteves

Ecology of Aquatic Macrophytes in Brazil: The Legacy of Francisco De Assis Esteves

Transformation of Aquatic Plant Diversity in an Environmentally Sensitive Area, the Lake Taihu Drainage Basin

Low genetic diversity in an African invasive Poaceae in Brazil

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